The option to create a reverse charged VAT is unavailable in QuickBooks Online (QBO) International version. You'll need to manually reverse it through a journal entry. Then, you can consult your accountant on how to properly record it in your Online account.
Here's how to create a journal entry:
Click the Create icon on the top menu.
Choose Journal Entry under Other.
Enter the information in the Account, Debits, Credits, Description, Name and VAT columns.